Mazda managed to close-out a dynamic 2013 Rolex Grand-Am GX season with nine-straight diesel-powered wins, with Mazda winning the 2013 Grand-Am GX Manufacturers Championship. In twelve races, the SpeedSource Mazda team scored nine wins, five for the #00 VISITFLORIDA.com Mazda6 and four for the #70 Castrol Edge Mazda6. The team’s successes can be partially summarized […]